1994 90hp johnson won't idle

gilligan04

Recruit
Joined
Aug 22, 2004
Messages
2
i'm having allot of problems with the idle after initial start.<br />after engine is warm, it won't idle.<br />also would like to know the plug gap?
 

reeldutch

Lieutenant
Joined
Feb 2, 2004
Messages
1,340
Re: 1994 90hp johnson won't idle

wat engine is it?<br /><br />are you shore its warmed up ?<br />no stuck open tstats?<br />dirty low speed jets in carbs?<br />leaking air?<br />tank vent clogged?<br /><br />just some thoughts
 

gilligan04

Recruit
Joined
Aug 22, 2004
Messages
2
Re: 1994 90hp johnson won't idle

it is a V4 90 hp johnson oil injected 1994<br />after running for about ten minutes the engine won't idle.<br />there is an oily film on the front under the carbs.<br />would this mean a vacuum leak?<br />the motor runs great at high speeds.
 

reeldutch

Lieutenant
Joined
Feb 2, 2004
Messages
1,340
Re: 1994 90hp johnson won't idle

may be you got a stuck open needle or bad float.<br />or dirty low speed yets.<br />i would check the carbs and the vacuum bleed lines. also check if your primer is not leaking.<br />i dont think your block is sucking false air somewere.<br />i would start clean out the carbs and go from there.<br />check out the compression to.<br />a bad cylinder when warm will drop more in compresion and might not alow you to idle.<br />i dont think thats the case but check it out it cant hurt.<br />do you use champs Ql77jc4 gap 0.40?<br />that might help also.<br /><br />but i'm not a wrench just a do it yourselfer.<br /><br />reeldutch
 
Top